Gas-burner.



PATENTED JAN. 6, 1903` `J. KELLY.

GAS BURNER.

APPLIOATION FILED SEPT. 29, 1902.

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NITFD STATES PATENT OFFICE.

JoHNxELLY, oF cHIcAeo, ILLINOIS.

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SPECIFICATION forming part of Letters Patent No. 717,866, dated January 6, 1903-.

Application filed September 29,1902. Serial No. 125,203. (No model.)

To all whom it may concern:

Be it known that I, JOHN KELLY, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a new and useful Improvement in Gas-Burners, of which the following is a speciication.

ignition accidentally takes place in the mixer,

either from the heat of the flame, which then puffs out, or from careless lighting, wherein the lighted matchor taper employed for ignition ignites the mixer in passing it for applicationA to the burner proper.

The object of my invention is to prevent accidental ignition at the mixer from the first of the aforesaid causes bylocating the mixer furthe purpose adequately far from the flameburner, and from the second of the aforesaid causes by shielding the mixer in a peculiar manner in addition to providing it in a remote situation relative to the burner.

The accompanying drawing shows my invention applied to a gas-fixture having a plurality of burners, each provided with a mantle for incandescent lighting, the view presented being a vertical section.

A is the gas-supply pipe,.leading in a usual or any suitable manner to one or more burners B, each shown to be surmounted by a mantle C, the fixture being shown to be further provided with a senta for a globe D or shade enveloping the burners. In Athe supply-pipe is interposed a coupling-head b, containing a shut-off valve c, provided with an operating-lever cl,from opposite ends of which chains d are shown to depend by which to operate it to turn the valve. Another coupling-head e is interposed in the sectional supply-pipe A and contains the pressure-reduc-- ing opening f, of adiameter according to requirement.

Eis a tubular shield depending from the head e, about which it is shown fastened lby screwing it in place, to close itat itsupper endandpermitittobelongitudinallyadjusted to increase or decrease the width of air-inlet space 71, between its lower end and a cup g there shown to surround and overlap it,with the primary purpose of covering to hide from view the free end of the shield-tube, and thus Near the inner end of the shield the supply-pipe A is perforated, a circumferential series of perforations fil being shown to admit air from the chamber afforded by the tubular shield into the supplypipe by suction of the gas iiowing Athrough the pipe to mix with the gas for promoting its combustibility. The mixer is thus provided in the supply-pipe itself and is shielded by the tube E to control the supply of air and with the effect of rendering the mixer practically inaccessible for lighting in its position, which, moreover, is such as to bear no relation to the relative height of the burners from the floor or other base, while on the more commonly used form of gas-light burner equipped with a mixer the latter is below it, and if removed from it adequately far to prevent ignition of the mixer from the flame tends to raise the burner to an unduly-elevated position.

An incidental advantage is due to the construction adapting the shield E to be surrounded by a globe D, since the air-supply must pass to the mixer through the heat generated in the globe from the burners, and it therefore becomes more or less heated in its course and the better, therefore, promotes combustion of the gas.

What I claim as new, and desire to secure by Letters Patent, is

1. Incombination with a gas-burner and the gas-supply pipe leading thereto, a mixer comprising a perforated section of said pipe, above the plane of the burner, for the admission of air into the pipe for mixture with the gas passing through it, and a shield covering `saidV perforated pipe-section and forming about it an air-chamber open to the atmosphere and to said perforated section.

2.` In combination with a gas-burner and the gas-supply pipe leading thereto, a mixer comprising a perforated section of said pipe, above the plane of the burner, for the admission of air into the pipe for mixture with the gas passing through it, and a tubular shield adjustably supported to depend' about and cover said perforated section and form about IOO said pipe an air-chamber open at its lower en d to the atmosphere.

3. In combination with a gas-burner and the gas-supply pipe leading thereto, a mixer comprising a perforated section of said pipe, above the plane of the burner, for the admission of air into the pipe for mixture with the gas passing through it', a tubular shield sup` ported to depend about and cover said perforated section and form about said pipe an air-chamber, open at its lower end to the at- Inosphere, and a cup overlapping the lower end of said shield and forming therewith the air-inlet space.

4. In combination With one or more gasburners and a gas-supply pipe leading there- In presence of- L. HEIsLAR, ALBERT D. BACCI. 

